SPI Slave on XMC 4700

Hi all,

we have Problems using spi slave on a XMC 4700.

Settings:
XMC4700 with Dave 4 APPs, Project is attached.

Clock is generated external an feed to the XMC ( frequeny generator ) SCLK input.

Data Transfer is prepared for DMA.
Interrupt on PIN 0.8 on falling edge is enabled ( same CLK signal as 5.2 ) and then P5.5 ist
driven low, which will drive by bridge P5.1 input ( slave selct ).

The CPU should shift out every time the same, but doesn't depending on the Frequency, e.g. 20 Mhz forks fine.

Plase take a look at the scope timings.


Can you helP ???

Thanks & Regards

TSB

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• SPI Slave Scope.pdf‎ (452.5 KB)
• SPI_TST_NEW.zip‎ (5.06 MB)